I'm trying to find kclean.exe

Hi, I've had problems with Channel4 on demand and the BBC iplayer. I have uninstalled both but I am left with 2 versions of kontiki on my pc. I have stopped them starting in msconfig but I want to get rid completely so I can install a fresh 4od hopefully with no problems. I know there is a program called kclean out there that does it but I can't find it anywhere! Can anyone help?